James minifie



J.- MIN'IFIE.

Lamp Burner.

No. 80,494 Patented July 28,1868.

JAMES MINIFIE, OF BALTIMORE, MARYLAND.

Letters Patent No. 80,494, dated July 28,1868f IMPROVEMENT INLAMP-BURNERS.

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TO ALL WHOM IT MAY GONGEEN Be it known that I, JAMES MINIFIE, of thecity and county of Baltimore, and State of Maryland, have invented a newand useful Improvement in Gas and Lamp-Burners;-and I do hereby declarethat the following is a full, clear, and exact description of theconstruction and operation .of the same, reference being bad to theaccompanying drawings, making a partof this specification, inwhichFigure 1 is a p'erspectiveview.

Figure 2 is a vertical axial section.

Figure 3 is a-detached view of the upper deflector. V

The object 'of this invention is to-increase the illuminating capacityof lamps and gas-burners, by providing for them a combined burner andreflector, which shall cause a more perfect combustionof the gases,smoke,

- serving. to collect andguide the current into the openings above.

820., and whichshallcollect the light and reflect it to better advantagefor the purposes of reading, sewing, &c., than any burner, reflector, orlamp-shade hitherto employed. I

In the drawings, D represents the lower part,-and C the upper part of myimproved deviceyeach part consisting of a conical corrugated or flutedplate, the lower one being the larger, and being brazed at its top tothe wick-tube e, and supported nnderne'a th by a ,foraminou-s plate, orbraces of metal, g, attached to the wick-tube, and the upper one'beingsupported by arms or braces, 01 d, which spring from the wick-tube at'or near the apex of the plate D.

The apex of the upper plate is provided with an opening for the blaze ofthe lamp, and is so adjusted as to be about'a half inch above the upperend of the wick-tube, in order that a part of the flame may come belowit, and its light be reflected downward and outward by the under surfaceof the plate, "while the rest comes above, and is reflected in part fromits upper surface. h

Along thesummits of the'ridg'es formed'by eorrugating the lower cone, aseries of openings is'made, for the purpose of admitting currents of airfrom below to the space between the cones, 'and thence'to the flame. Theair follows the channels -in the under surface of the lower conedirectly to these openings, the corrugations The bottom of the chimneyrests upon the lower cone, as seen in fig. 1, and the corrugations formchannels all around under its lower edge, through which other currentsof airai'e admitted to the central space between the cones.The'corrugations thus' answer an important purpose in properly supplyingand'directing atmospheric air to support combustion. They answer alsoanother. and equally important purpose, by increasing the reflectingsurface and multiplying the angles at which the light is thrown from theburner. Were the upper surface of the cones smooth, the light would bereflected in such a manner that a bright spot would appear at a singlepoint onthe reflectors, while, as now constructed, they both reflect thelight all along each corrugation that 'is visible to the observer.

The two plates intercept the light of the lower part of the blazebetween them, and collecting it together, cast it downward and outwardin a ring of great brilliancy around the lamp, while a part of theflame, suflicient tolight the room tosome extent, but not to blind theeye, is above the upper cone, and operates in the manner of ordinarylamps. From this cause the lamp is easier for the eye, for the purposeof reading, sewing, '&c., than, any heretoforeused. I

The light is so eeonomizcd,- and the draught of air so perfectly fed tothe flame by this improved burner, that it increases the brilliancy andilluminating power of the light of the lamp on which it is employed morethan twenty-five per cent., as has been demonstrated by actualexperience.

It will be observed that the corrugations of the cones radiate fromtheir apex.

I do not broadly claim a corrugated cone when employed upon alamp-burner; but

What-I do claim as new, and desireto secure by Letters Patent, is-

1. The combination and arrangement of the two corrugated cones C D, andtube e, substantially as described.

2. ,The corrugated cone D, when providcdwith the above-describedopenings along the summits of the ridges formed by the corrugations,substantially as and for the purpose herein set forth.

JAMES MINIFIE.

Witnessesa, V

Carl n Les Ramona SIIECKELLS, Hmmx Lewis.

